This knowledge article explains the DEFERRED email status that can appear in the System Logs.
- System Log
- Email Delivery
- Deferred Email
A deferral occurs when a recipient server is not ready to accept email from an IP address or domain. Instead of blocking or bouncing the message, the recipient server defers receiving it and waits for the email to be retried.
This happens if the recipient server has temporarily rejected the email and is waiting for it to be retried.
Check the email server to determine why the email was deferred and ensure that it can accept incoming emails. It is possible that the email client/server may have spam filters in place that are rejecting emails from Okta.
To find the emails that are not delivered with the reason being DEFERRED, the following query can be used:
eventType eq "system.email.delivery" and outcome.result eq "FAILURE" and outcome.reason eq "DEFERRED"
